It's just not an issue that I usually worry about to be honest. Between the amount of DRM free classical literature and the ability to freely convert Word documents to .lit format (http://www.overdrive.com/readerworks/downloads/default.asp?Download=RWSTAN), it's just not an issue I've run into.
If I were reading the latest book, or had to purchase them and deal with activation the way you have, I'm sure I'd feel the same. My point is more about the "visual" and "readability" aspects. Those thing that Bill was talking. The only real refrence he made to IP issues I totally agree with, no one originator of content should be paid only once. To which the larger question of course is how?
I have no idea. What I do know is that whatever content I get in the MS Reader format is easy on my increasingly antiquated eye-balls.